Bronzing attachment for printing-presses.



PATENTED AUG. 21, 1906.

s. R. KRAMER. BRONZING ATTACHMENT FOR PRINTING PRBSSBS.

APPLICATION FILED SEPT.12.1905.

PATENTHD AUG. 21, 1906. s. R. KRAMBRQ BRONZING ATTACHMENT FOR PRINTING PRESSBS.

APPLICATION FILED SEPT. 12,1905.

3 SHEETS-SHEET 2.

PATENTED AUG. 21, 1906.

BRONZING S. R. KRAMER.

APPLICATION FILED SEPT. 12, 1906.

ATTACHMENT FOR PRINTING PRBSSES.

3 SHEETS-SHEET 3.

UNITED srATns PATENT orrron.

KRAMER WEB MANUFACTURING COMPANY, OF SYLVANIA, A CORPORATION OF PENNSYLVANIA.

PHILADELPHIA, PEN N BRONZING ATTACHMENT FOR PRlNTlNC-i-PRESSES.

. Specification of Letters Patent.

Patented Aug. 21, 1906.

' application filed September 12, 1905. Serial No. $8.142.

To all whom it may concern: I

Be it known'that I, SAMUEL R. KRAMER, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented a Bronzing Attachment for Printing-Presses, of which the following is a specification.

My invention consistsof a novel combination and construction of'apparatus for applying a bronzing-powder or similar substance to a continuous web of sheet material, such as paper, after the same has been passed through a printing-press or has been otherwise properly prepared for bronzing.

More especially the invention consists in a bronzing attachment particularly a plicable to presses of the Gordon type an of such construction that it operates upon a continuous web of material between the time that the said web receives an impression from the press and the time when it is slit or out into a number of pieces. I

One object of the invention is to provide an attachment of. the character above noted which shall be applicable to printing-presses Without requiring material change in their construction. and which, while being efficient and reliable in operation, shall be relatively inexpensive to construct and place in position.

It is further desired that the device shall so operate as to be relatively economical in its use of bronzing material.

These objects I attain as hereinafter set forth, reference being had to the accompanying drawings, in which .igure 1 is a side elevation of a printingpress, illustrating my invention as applied thereto. Fig. 2 is a plan view, on a larger scale than Fig. 1, showing the preferred ar- 'rangement of the parts comprisingmy bronzing attachment. tion taken on the line 3 3, Fig. 2. F i 4'is a side elevation of a portion of the mac anism employed for operating the bronzing-brushes.

Fig. 5 is a detail sectional elevation illustrating. the connection between certain of the parts of the device shown in Fig. 4 and F ig. 6

- is aside elevation of the device for period'- ically jarrin the feeding mechanism for the bronze-pow er. I

In the abOvedrawings, Ais a framework supported upon the body structure of a print- Fig. 3 isa sectional elevaing-press of the Gordon type (shown in dotted of strips will be compelled to pass through said frame. As will be understood by those skilled in the art, such a press includes a relatively large gear-wheel a, to the face of which is attached one end of a connecting-rod a for oscillating that portion g of the press upon which'the platen is carried.

The frame A of the bronzing attachment is preferably made in box form and provided with a suitable guide-roller 6 over which asses the continuous web of;paper after it eaves the bed of the press. From this roller said web passes through the box-like frame and between a pair of rollers b and b after which it is drawn between any desired number of pairs of slitting-wheels a of the wellknown form, whereby it is divided into a number of Ion itudinally-extendin strips. In its passage tlTrough the frame A the paper Web is for some distance supported upon a smooth flat 'table or guiding-surface 0, above arms 0, whose e'nds inthe present instance are turned up for the reception of perforated bars (Z, fixed to the backs of brushes D, which brushes rest upon that portion of the web of paper supported by the surface 0, there preferably being small weights 1 carried on said brushes, by which their pressure on the paper may be increased. Longitudinal motion is given to the shaft 0, and hence to the brushes D, through a bellcrank lever E, one arm of which is slotted at e, as shown in Fig. 5, to receive a pin a, projecting from the collar 0 fastened to the shaft C. The second arm of the lever E is provided with a substantially spherical end which is engaged by one end of a link e, whose oppo-' site end is journaled ona crank-pin a projecting from the face of a pinion a, which meshes with the gear-wheel a." I

In front of and above the brushes D is a ing across the frame A and having through its lower ortion a revoluble shaft or feedroller 9. etween this roller and thesurface of the paper web a is a longitudinally-enwhich extends a transverse shaft C, carrying hopper G, suitably supported on and e'xtend tending structure g, forming the bottom of the hopper and provided with any desired number of feed-holes 9 extending through it. There are in the feed-roller g a number of groups of recesses or depressions 9 so placed that each group lies in the same plane as one of thepassages g in the bottom 9 of the hop-- er G. The amount of material passing through the openings 9 in this bottom structure may be regulated by means of set-screws 9 it being possible by moving said screws in or out to vary the cross-section of a portion of the res ective passages. g in the opper is turned under operating conditions by means of a sprocket g placed upon a portion of said shaft which extends outside of the framework A, it bein understood that said sprocket may be am? usually is driven from any suitable part of the mechanisni of the rintingress, (in the present instance one o the webeeding ro1lers-,) which is only 0 erated when the said paper web is to be fe Said sprocket g is connected b achain 9 to a similar sprocket b on the roller Carried in suitable bearings on the frame 'Aand provided with pulley-wheels h and h are two substantially parallel shaftsH and H, on each of which 1s a cylindrical brush, (indicated by'the letters h and oh", respectively.) Said shafts are so placed that one of the brushes is in engagement with the up er surface of the paper web while the ot er brush it is to the rear of the first roller and in such position as to engage the under surface of said web.

Collecting-trays J and J are, respectively,

"placed in front and back of the brush h which, with the brush k may be made of felt or "other relatively soft material for the purpose o-f removing the surplus bronzingpowder from the pa er web. The trays J and J rest upon gui es and j, fastened to the sides of the frames A, and each of them has at one end and near its sides angle-pieces j, each of which is a set-screw 3' so placed as to engage the upper ends of the variousguidewaysj and j. screws the position of the trays or plates J and J may be adjusted relatively to the brush h Upon the shaft 9 outside the frame A is a cam '11, placed toact 11 on a pin 4, pro'ecting from a weighted arm pivoted. to sai frame. cam causes thisarm to be alternately lifted and allowed to drop upon the shaft 9, thereby periodically jarring it for a purpose herein-a ter noted.

7 Under operating conditions the recessed feed-rollerg is intermittently rotated the hopper, which-is supplied with bronzing powder, so that the various recesses g in said eed-roller are alternately filled with the owder and caused to empty into the various eed-passagesg in the structure 9, forming the ottom of" said hopper. Should the The feed-roller By means of these set- F I means for feeding a Web of material through 1 the same, a reservoir having 'an openin or 3 series of openin s for delivering materiato the Web, arevo uble feed-shaft in the 'reser- I veir, provided 'th a recess or series of re- As said shaft g is turned the i 'ervoir and deliver the same to the openings .bronZe-powdertend to clog 'said recesses or thereof has been applied. The brush-roller it removes from the under side of the web any i'l'ift'ed from t I hopper G.

passages, the successive blows struck the shaft 'or roller g by the arm I will act to dislodge such accumulation of powder,

It will be understood that under operating conditions various characters or symbols are printed by the press upon the web of aper 1n the customary way, the printing-in employed being receive bronze-powder and cause it to adhere of a nature particularly fitted to to the paper web. As said web leaves the printin mechanlsm it passes under the hopper G, om whence it receives definite quan- ,tities of bronze-powder andthen moves un- I der the brushes D.- As these latter are vibrated from side to side over the web by the 1 combined action of the link 6 the bell' crank lever E, and the shaft (3 they'not only distribute the bronze-powder over said web,but cause it to be thoroughly rubbed upon the.

surface thereof, so that theinked portions receive a complete continuous coating of said owder. Fromthese brushes the web passes 'etween the brushes h and it the former of which, turning in the direction of the arrow 1 in Fig. 3, collects the surplus bronze-powder and deposits it either upori the tray J or upon the tray. J, so that the only powder remainon said web is that upon the portions ing up to which the ink or adhesive material assages g in the bottom of the hopper the ength of time required to deliver the charges of bronze-powder to the web may 1 be varied as desired, it being thus possibleto adjust der from the hopper. E cumulates u on the trays J and these are iieir guides and emptied into the with great nicety the delivery of pow.- As surplus owder accesses placed to receive material from the res thereof ,-with means for distributnig over the web, the material deliveredfrom the reservoir, substantially as described.

2. The combination in a bronzmg. device,

- of means forfeeding. a web of material, a res- A ei'voirhavin in its lower-portion a series of particlesof bronze-powder which may have accidentally collected thereon during its pas sage through the box-like frame A By moving the set-screws g? so that they restrict the i area of the LOO openings, a ceding device includin a shaft f provided with a recess or series 0 recesses each placed to receive material the res ervoir and deliver the same to onset the openings in the reservoir, with means for feeding a web 0.

turning said shaft, and means for distributing material delivered from the reservoir over the web of material, substantially as (16- scribed.

3. The combination in a bronzing device of a reservoir and means for delivering bronzing material upon a web of. material, means for feeding the web to the device, means for distributin over the web the material delivered from t e reservoir, a rotary brush for removin the surplus bronzing material from the we and a receptacle on each side of said brush for receiving material collected thereby, with means for adjusting the distance between the brush and the receptacle, substantially as described.

4. A bronzin device including means for material, a reservoir having an openin for delivering material to the web, a feeding evice constructed to receive material from the reservoir and to deliver the same to the opening therein, with means for adjusting the size of said openin and a-device for distributing over the Web t e material delivered from the reservoir, substantially as described.

5. A bronzin device including means for feeding a web 0% material, a reservoir for delivering bronzing materialto the web, a bar transversely supported over the web, a brush attached to'said bar, so as to rest upon the web, a lever having one arm connected to the bar, a link connected to the second arm of the lever, a crank having a pin connected'to said link, with means for turning said crank, substantially .as described.

A bronzin feeding'a web 0% material, a reservoir having means for delivering owdered material to said web, a brush for istributing said matedevice including means for Irial over the Web, means for moving said brush including a bar attached thereto, a leing a slot in one arm of said lever, a cran means for turnin the same, and a link connecting the pin 0 said crank with the lever, substantially as described.

7. A bronzing device including a reservoir for bronzing material having a feeding device consisting of a revoluble receptacle for receiving material from the reservoir and delivering it upon a surface to be bronzed, with means for jarring said receptacle to dislodge material therein, 'substantially as described.

8. A bronzing device including means for feeding a web of material, a reservoir for bronzing shaft provided with arecess or recesses placed to receive powder from the reservoir and deliver the same to the web, with means for distributing said owder over the web, and means for eriodically jarring said feed-shaft, substantia -ly as described.

9. A bronzing device including means for feeding a web of material, a reservoir for bronzing powder having a revoluble feedshaft provided with a recess or recesses placed to receive powder from the reservoir and deliver the same to the Web, with means for distributing said powderover the web, a cam on the feed-shaft and an arm operated thereby, and placed to jar said shaft when sooperated, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL R. KRAMER.

Witnesses? 1 WILLIAM E.- BRADLEY, Jos. H. KLEIN.

ver, a collar on said bar having a pm engag owder having a revoluble feed- I 

